Kylox, Visionary Inventor - 5UR
Legendary Creature – Viashino Artificer (Rare)
Menace, ward 2, haste
Whenever Kylox, Visionary Inventor attacks, sacrifice any number of other creatures, then exile the top X cards of your library, where X is their total power. You may cast any number of instant and/or sorcery spells from among the exiled cards without paying their mana costs.
4/4
Sounds similar to my Sandstalker deck. Ball Lightning, [[Mogg Maniac]], [[Fling]], [[Pandemonium]], [[Furnace of Rath]], and then this was back when the original text on [[Phyrexian Dreadnought]] was still in use.